Technical Field
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The present invention relates to a joint member for a
joint groove required to secure water-tightness between
adjacent wall surface facing members in a building, and an
installation method for the same.
Background Art
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Hitherto, as a means for sealing a joint groove
between adjacent wall surface facing members A of a siding
or the like in a building, a hat-shaped joiner 50 shown in
Fig. 11 is fixed to a bed member 51 such as a furring strip,
and a sealant 52 is charged in a joint groove formed by
abutting the wall surface facing members A against both side
surfaces 50a of a protuberance of the joiner 50 so as to
enhance the water-tightness of the joint groove.
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The conventional means for sealing a joint groove,
however, requires that masking be provided before
installation to prevent a sealant from adhering to the wall
surface facing members A prior to charging the sealant 52.
The installation is not only cumbersome but also requires
skill because the surface of the sealant 52 must be made as
flat as possible in order not to ruin an appearance thereof.
Furthermore, spots are produced in some cases when charging
the sealant, so that sealing effect cannot always be
enhanced.
Disclosure of Invention
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A technological object of the present invention is to
provide a joint member that can be easily installed, without
adversely affecting an appearance, in a joint groove
required to secure water-tightness between adjoining wall
surface facing members of a building, and an installation
method for the same.
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Another technological object of the present invention
is to provide a joint member and an installation method for
the same that permit easy, reliable sealing in setting a
predetermined joint groove between wall surface facings by
using a joiner, by providing the joiner itself with a
structure for enabling a joint groove to be easily sealed so
as to obviate the need for masking or manual sealant
charging.
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To these ends, a first joint member in accordance
with the present invention is comprised of: a joint base
member consecutively and integrally installed on a surface
of a synthetic resin joiner provided by being positioned
between wall surface facing members on a bed surface of a
building facing; wherein the joint base member has right and
left side plates, at least two soft sealing tongue flaps
protuberantly provided on outer side surfaces of the side
plates, distal ends thereof being in contact with end
surfaces of the wall surface facing members that constitute
inner walls of a joint groove, and many apertures drilled
between the sealing tongue flaps in the two side plates; a
sealant of a sufficient amount to be pressed out and charged
into a space to seal the space surrounded by the pair of
sealing tongue flaps and the inner side walls of the joint
groove is charged between the side plates of the joint base
member; and a sealing member for restraining outflow of the
sealant is attached to a mouth portion between the two side
plates of the joint base member; and a core member to be
pushed into a gap between the side plates of the joint base
member is formed by a core portion that pushes into the gap
between the side plates while pressing the covering member
thereby to press the sealant, which has been charged therein,
out through the apertures of the side plates, and a jaw
plate of a head portion that covers a joint groove mouth
portion, the core portion and the jaw plate being
consecutively installed such that they are formed to have a
substantially T-shaped section, and the core portion having
a length that does not cause itself to reach a bottom part
of a sealant charge area between the sides plates when it is
pushed in.
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Further, a second joint member in accordance with the
present invention is comprised of: a joint base member
consecutively and integrally installed on a surface of a
synthetic resin joiner provided by being positioned between
wall surface facing members on a bed surface of a building
facing; wherein the joint base member has right and left
side plates, at least two soft sealing tongue flaps
protuberantly provided on outer side surfaces of the side
plates, distal ends thereof being in contact with end
surfaces of the wall surface facing members that constitute
inner walls of a joint groove, and many apertures drilled
between the sealing tongue flaps in the two side plates; a
sealant of a sufficient amount to be pressed out and charged
into a space to seal the space surrounded by the pair of
sealing tongue flaps and the inner side walls of the joint
groove is charged between the side plates of the joint base
member; and a covering member for restraining outflow of the
sealant and for restraining a mouth portion between the two
side plates from narrowing is fitted into the mouth portion
between the two side plates of the joint base member; and a
core member to be pushed into a gap between the side plates
of the joint base member is formed by a core portion that
presses out the sealant, which has been charged by being
pushed into the space between the side plates, out through
the apertures of the side plates by pressing the covering
member to push it into the gap between the side plates, and
a jaw plate of a head portion that covers a joint groove
mouth portion, the core portion and the jaw plate being
consecutively installed so that they are formed to have a
substantially T-shaped section, and the core portion having
a length that does not cause a distal end of the covering
member to reach a bottom part of a sealant charge area
between the sides plates when the core portion is pushed in.
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In the joint member, it is appropriate to form,
between sealing, tongue flaps on the joiner side in the side
plates of the joint base member and the joiner, a space into
which the remainder of the sealant, which is pressed into
the space surrounded by the pair of sealing tongue flaps and
the inner walls of the joint groove when the core member is
pushed into a gap between the side plates, flows.
Furthermore, it is preferable to form a protuberance for
setting a minimum width of the joint groove on the proximal
ends of at least one set of sealing tongue flaps at opposing
positions of the two side plates, the protuberance being
located on outer side surfaces of the two side plates in the
joint base member.
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Furthermore, an installation method in accordance
with the present invention employing the aforesaid joint
member is comprised of: a step for providing a joiner by
positioning a joint base member between wall surface facing
members on a bed surface of a building facing; and a step
for pushing a core portion of a core member into a gap
between side plates of the joint base member filled with a
sealant, or pushing in the core portion of the core member
while pushing a covering member, which has been fitted into
a mouth portion between the two side plates of the joint
base member, to push the sealant out through apertures in
the side plates into a space surrounded by a pair of sealing
tongue flaps protuberantly provided on the outer side
surfaces of the side plates and inner walls of a joint
groove, and covering a mouth portion of the joint groove by
a jaw plate of a core member head portion at the same time.
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Furthermore, a third joint member in accordance with
the present invention is comprised of: a sealing structural
member integrally and consecutively installed on a surface
of a synthetic resin joiner provided and positioned between
wall surface facing members on a bed surface of a building
facing; wherein the sealing structural member has flexible
right and left side plates and soft sealing flaps
protuberantly provided on outer side surfaces of the side
plates; a core member pushed into a gap between the side
plates of the sealing structural member is formed by a core
portion that is pushed into a gap between the side plates to
push and spread the two side plates to press the sealing
flaps on outer side surfaces of the side plates into contact
with inner walls of a joint groove, and a jaw plate of a
head portion for sealing a mouth portion of the joint groove,
the core portion and the jaw plate being consecutively
installed to have a substantially T-shaped section; and
engaging portions, which engage with each other when a core
member is pushed into the sealing structural member so as to
hold the core member between the two side plates in the
sealing structural member so that it does not slip off, are
provided inside the two side plates in the sealing
structural member and on the core portion of the core member.
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The sealing flaps protuberantly provided on the outer
side surfaces of the two side plates in the sealing
structural member of the third joint member may be formed by
a plurality of soft sealing tongue flaps made integral with
the side plates.
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Furthermore, the engagement between the side plates
and the core portion in the core member may be accomplished
by engaging a proximal end portion or a distal end portion
of the core portion with an engaging portion of an
associated side plate.
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The following will explain more specifically about
the aforesaid joint member and its installation method. To
set the joint member in accordance with the present
invention in a joint groove between adjoining wall surface
facing members in a building, first, a joiner is provided
with the joint base member positioned between the wall
surface facing members on a bed surface of a building facing.
At this time, the sealing tongue flaps are in elastic and
close contact with the end surfaces of the wall surface
facing members so as not to produce a clearance between the
wall surface facing members and the joint base member.
Especially when the proximal end portions of at least one
set of the sealing tongue flaps are provided with
protuberances in the positions where the two side plates of
the joint base member oppose each other, the joint groove of
the wall surface facing members can be set to a minimum
width by the protuberances.
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As described above, when providing the joiner with
the joint base member positioned between the wall surface
facing members, the sealing tongue flaps protuberantly
provided on the outer side surfaces of the two side plates
in the joint base member are pressed against the inner walls
of the joint groove. There is a danger in that the gap
between the side plates reduces due to a reaction force
received from the inner walls of the joint groove, causing
the sealant to flow out through the mouth between the two
side plates. This problem can be solved by increasing the
strength of the bottom plate portions of the two side plates
in the joiner. Narrowing of the mouth of the two side
plates can be restrained by fitting a covering member into
the mouth between both side plates in the joint base member.
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Thereafter, the core portion of the core member is
pushed into a gap between the two side plates of the joint
base member to push the sealant out of the apertures drilled
in the side plates of the joint base member. The sealant is
charged in the space surrounded by the pair of sealing
tongue flaps and the inner walls of the joint groove, and
the remaining sealant pushes and spreads the sealing tongue
flap on the joiner side of the side plate in the joint base
member to flow into the space between the joiner and the
sealing tongue flap. This arrangement prevents the sealant
from spreading out of the joint member due to variations in
the width of the joint groove.
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To be more specific, the upper surfaces of the
sealing tongue flaps come in close contact with the inner
walls of the joint groove so that the sealing tongue flaps
bend toward the joiner when the end surfaces of the wall
surface facing members are pressed into contact. Hence,
even if the sealant which has been pushed out fails to be
accommodated between the pairs of sealing tongue flaps, the
sealant will flow out into the space on the side of the
joiner through the gap between the sealing tongue flaps on
the side of the joiner and the inner walls of the joint
groove, so that it will not flow out of the wall surface
facing members through a gap between the sealing tongue
flaps on the mouth of the two side plates in the joint base
member that is difficult to push and spread by curving and
the inner walls of the joint groove. This arrangement
enables the sealant to be effectively used for sealing the
joint grooves and also permits variations in the width of
joint grooves to be successfully handled.
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Thus, the first and second joint members described
above make it possible to easily install a joint member in a
joint groove required to secure water-tightness between
adjoining wall surface facing members of a building without
adversely affecting an appearance thereof.
-
Moreover, since the joiner itself is provided with
the structure for easily sealing a joint groove, the need
for masking or manual charging of a sealant can be obviated,
permitting easy, reliable sealing.
-
In addition, an area for accommodating an extra
sealant to cope with variations in the width of a joint
groove is secured, preventing the sealant from extending out
of the joint member when the core member is pushed in. This
arrangement enables effective use of the sealant for sealing
the joint groove thereby to provide effective sealing
between the joint groove and the inner walls.
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Thus, according to the present invention, a joint
member can be easily installed, without sacrificing an
appearance, in a joint groove required to secure water-tightness
between adjoining wall surface facing members of a
building. Moreover, since the joiner itself is provided
with the structure for easily sealing a joint groove, the
need for masking or manual charging of a sealant can be
obviated, permitting easy, reliable sealing.
-
In addition, an area for accommodating an extra
sealant to cope with variations in joint grooves is secured,
preventing the sealant from extending out of the joint
member when the core member is pushed in. This arrangement
enables effective use of the sealant for sealing the joint
groove thereby to provide effective sealing between the
inner walls of the joint groove.
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To install the third joint member described above,
first, the sealing structural member is positioned between
the wall surface facing members, and a joiner is provided in
place. Under this condition, the wall surface facing
members are fixed, then the core portion of the core member
is pushed into a gap between the two side plates of the
sealing structural member. This causes the jaw plate of the
core member head portion to primarily seal a mouth portion
of the joint groove, and at the same time, the two side
plates of the sealing structural member are pushed and
spread, causing the sealing flaps on the outer side surfaces
of the side plates to be pressed into contact with the inner
walls of the joint groove to perform secondary sealing.
Furthermore, the engaging portions provided in the two side
plates in the sealing structural member and the core portion
in the core member engage with each other to hold the core
member between the two side plates in the sealing structural
member so that it does not slip off. This arrangement makes
it possible to positively maintain water-tightness and also
to accommodate variations in the width of joint grooves.
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Thus, a joint member can be provided that can be
easily installed in a dry manner, without sacrificing an
appearance, in a joint groove required to secure water-tightness
between adjacent wall surface facing members of a
building.
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In addition, the joiner itself is provided with the
structure for easily sealing a joint groove and is adapted
to obviate the need for a wet type sealant. Hence, there is
no need for masking or manual charging of a sealant, thus
permitting reliable sealing to be achieved easily at low
cost.
Brief Description of Drawings
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- Fig. 1 is a sectional view showing a state of a joint
member of a first embodiment in accordance with the present
invention after installation.
- Fig. 2 is a sectional view showing a state wherein a
sealant has been charged in a joint base member provided
integrally and consecutively with a joiner of the first
embodiment.
- Fig. 3 is a side view of the state shown in Fig. 2.
- Fig. 4 is a sectional view of a core member of the
first embodiment.
- Fig. 5 is a sectional view showing a state of a joint
member of a second embodiment in accordance with the present
invention after installation.
- Fig. 6 is a sectional view showing a state wherein a
sealant has been charged in a joint base member provided
integrally and consecutively with a joiner of the second
embodiment.
- Fig. 7 is a sectional view of a core member of the
second embodiment.
- Fig. 8 is a sectional view showing a state of a joint
member of a third embodiment in accordance with the present
invention after installation.
- Fig. 9 is a sectional view showing a state of a joint
member of a fourth embodiment in accordance with the present
invention after installation. Fig. 10(a) is a sectional
view of a core member in the joint member of a fourth
embodiment, and (b) is a sectional view of a joiner made
integral with a sealing structural member of the fourth
embodiment.
- Fig. 11 is a sectional view showing a conventional
example.
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Best Mode for Carrying Out the Invention
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The following will describe embodiments of a joint
member in accordance with the present invention in detail
with reference to the accompanying drawings. Fig. 1 through
Fig. 4 show a first embodiment of a joint member in
accordance with the present invention.
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In Fig. 1, reference numeral 2 denotes a joint member
for sealing a joint groove at joined portion or the like of
a wall surface facing member (a siding or other facing
panel) A of a building. The joint member 2 is used
primarily for a joint groove required to secure water-tightness
between adjoining wall surface facing members A in
the building. The joint member 2 is schematically formed of
a joiner 4, a joint base member 6 made integral with the
joiner 4, a sealant 8, and a core member 10.
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As can be seen from Fig. 1, the joiner 4 is
positioned and provided between adjoining wall surface
facing members A on a furring strip C. The furring strip C,
which constitute a bed surface of facing, is installed to a
body of the building via a waterproof sheet B employed as
necessary. The joiner is then fixed to the furring strip C
together with the wall surface facing members A by nails D
or the like, enabling the wall surface facing members A to
be installed consecutively.
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The joint base member 6 consecutively and integrally
installed to the surface of the joiner 4 has its right and
left side plates 12 and 12 made of a relatively hard
synthetic resin consecutively installed to the joiner 4 at
their proximal ends such that it is formed to have a
substantially U-shaped section as clearly shown in Fig. 2
and Fig. 3. A pair of sealing tongue flaps 14a and another
pair of sealing tongue flaps 14b, which are made of a soft
synthetic resin, are protuberantly provided aslant downward
at upper and lower positions, respectively, on the outer
side surfaces of the respective side plates 12 such that
they are formed integrally with the side plates 12.
Protuberances 14c and 14c for setting a minimum width of a
joint groove are provided on the proximal portions of the
pair of sealing tongue flaps 14b and 14b at positions near
the joiner 4 where they oppose each other in the joint base
member 6.
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A sealant 8 having fluidity and viscosity is charged
in a space between the two side plates 12 and 12. Numerous
apertures 16, through which the sealant 8 is pushed out into
a space S1 surrounded by the pairs of sealing tongue flaps
14a and 14b and an inner wall W of the joint groove as the
core member 10 is pushed into the gap between the side
plates 12 and 12, are provided at equal intervals in the
lengthwise direction of the joint base member 6 and in a
plurality of rows between the sealing tongue flaps 14a and
14b in the two side plates 12. In adjacent aperture rows,
each of the apertures 16 is disposed so that it is
positioned between two adjacent apertures 16 and also partly
overlaps the apertures 16 in adjoining rows. This allows
the sealant 8 to be pushed out substantially uniformly in
the longitudinal direction of the joint base member 6.
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Furthermore, a space S2 is formed between the sealing
tongue flaps 14b facing the joiner 4 and the joiner 4 in the
joint base member 6 as illustrated in Fig. 1. When the core
member 10 is pushed into a mouth portion 18 between the two
side plates 12 and 12 in the joint base member 6, if the
sealant 8 charged in the space S1 surrounded by the pairs of
sealing tongue flaps 14a and 14b and the inner walls W of
the joint groove leaves a remainder due to a width of the
joint groove, then the remainder pushes and spreads the
sealing tongues flaps 14a facing the joiner 4 to flow into
the space S2.
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The sealant 8 in an appropriate amount for a
relatively large width of a joint groove, i.e. an amount
that is sufficient to be pushed out and charged in the space
S1 surrounded by the pairs of sealing tongue flaps 14a and
14b and the inner walls W of the joint groove so as to seal
the space, is charged between the two side plates 12 and 12
in the joint base member 6. The sealant 8 is formed of
isobutylene-isoprene rubber or a silicone resin or other
rubber type or synthetic resin type elastomer, and it is
required to exhibit fluidity and viscosity so that it may be
pushed out of the apertures 16 of the side plates 12 when
the core member 10 is pushed into the space between the two
side plates 12 and 12 in the joint base member 6.
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Mold release sheets 20A covering the apertures 16 of
the two side plates 12 and 12 are attached beforehand to the
joint base member 6 into which the sealant 8 is charged.
After the charging, a mold release sheet 20B for inhibiting
outflow of the sealant 8 is attached to the mouth portion 18
between the two side plates 12 and 12, the mouth portion 18
opening at the top of the joint base member 6. It may be
unnecessary to attach the mold release sheet 20A if the
apertures 16 are small and there is no danger of leakage of
the sealant.
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As shown in Fig. 1 and Fig. 4, the core member 10 is
formed to have a substantially T-shaped section by
consecutively installing a core portion 10A formed of a
relatively hard synthetic resin and a jaw plate of a head
portion 10B that covers the mouth of the joint groove. The
core portion 10A is formed to be a plate substantially as
thick as the width between the two side plates 12 and 12 in
the joint base member 6, a distal end 10a thereof being
formed to be round to ensure smooth insertion of the core
member 10 into a gap between the side plates 12 and 12 and
smooth flow of the sealant 8. Furthermore, the core portion
10A is formed to have a length such that it does not reach a
bottom portion of a sealant charge area S3 between the side
plates 12, and also formed so that the sealant 8 pushed out
into the space S1 surrounded by the pairs of sealing tongue
flaps 14a and 14b and the inner wall W of the joint groove
is spread and merged between the distal end of the core
portion 10A and the bottom portion of the sealant charge
area S3 between the side plates 12 thereby to maintain
reliable sealing. Furthermore, the head portion 10B of the
core member 10 has its both wings 10b in frictional contact
with the inner walls W of the joint groove, and it is formed
of a jaw plate made of a relatively soft synthetic resin
that covers the mouth portion of the joint groove.
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The mouth edge portions of the inner surfaces of the
two side plates 12 and 12 in the joint base member 6, and
the proximal portions of the two side surfaces of the core
portion 10A in the core member 10 are provided with engaging
portions 22 and 24, respectively, that engage with each
other when the core portion 10A is pushed into a gap between
the two side plates 12 and 12 of the joint base member 6.
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The following will describe in further detail the
joint member 2 and its installation method. To install the
joint member 2 between the adjacent wall surface facing
members A in a building, the mold release sheets 20A are
first peeled off from the outer side surfaces of the two
side plates 12 in the joint base member 6. Then, as
illustrated in Fig. 1, the joiner 4 is provided on the
furring strip C installed on a building facing via the
waterproof sheet B, with the joint base member 6 positioned
between the adjoining wall surface facing members A. At
this time, the sealing tongue flaps 14a and 14b are brought
into elastic contact with the end surfaces of the wall
surface facing members A such that no more gap than
necessary is allowed between the wall surface facing members
A and the joint base member 6. In this case, it is
desirable to retain the end surfaces of the wall surface
facing members A in such positions that they do not come in
contact with the protuberances 14c and 14c formed on the
proximal portions of the pair of sealing tongue flaps 14b
and 14b in the two side plates 12 of the joint base member 6
since the protuberances 14c and 14c function to set the
minimum width of a joint groove formed by the end surfaces
of the wall surface facing members A.
-
It is alternatively possible to separately provide
the joiner 4 with abutting surfaces to be abutted against
the end surfaces of the wall surface facing members A to set
the width of a joint groove.
-
Thereafter, as the core portion 10A of the core
member 10 is pushed into a gap between the two side plates
12 of the joint base member 6, the sealant 8 is pushed out
of the apertures 16 drilled in the side plates 12 of the
joint base member 6, causing the sealant 8 to be charged in
the space S1 surrounded by the pairs of sealing tongue flaps
14a and 14b and the inner walls W of the joint groove. If
the sealant 8 leaves a remainder, then the remainder pushes
and spreads the sealing tongue flaps 14b facing the joiner 4
of the side plates 12 in the joint base member 6 to flow
into the space S2 between the joiner 4 and the sealing
tongue flaps 14b. This arrangement prevents the sealant 8
from spreading out of the joint member 2 due to variations
in the width of joint grooves. The core member 10 is pushed
in until the engaging portions 24 in the core portion 10A
engage the engaging portions 22 of the two side plates 12
and 12 in the joint base member 6. The engagement between
the engaging portions 22 and 24 retains the core member 10
in a predetermined push-in position.
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More specifically, when the end surfaces of the wall
surface facing members A are pressed into contact, the upper
surfaces of the sealing tongue flaps 14a and 14b are brought
into close contact with the inner walls W of the joint
groove such that they are bent toward the joiner 4. Hence,
even if the sealant 8, which has been pushed out, cannot be
completely accommodated in the space S1 between the pairs of
the sealing tongue flaps 14a and 14b, the sealant 8 will
flow out into the space S2 on the side of the joiner 4
through the gap between the sealing tongue flaps 14b on the
side of the joiner 4 and the inner walls W of the joint
groove, so that it will not flow out of the wall surface
facing members A through a gap between the sealing tongue
flaps 14a on the mouth portion of the two side plates 12 in
the joint base member 6 that is difficult to push and spread
by curving and the inner walls W of the joint groove. This
arrangement enables the sealant 8 to be effectively used for
sealing joint grooves and also successfully accommodates
variations in the width of joint grooves. If less sealant
flows out from the space S1, then the sealing tongue flaps
14a and 14b may be slanted upward in advance so as to allow
the sealant to flow out into a gap between the sealing
tongue flaps 14a and the jaw plate of the core member head
portion 10B.
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The joint member described above can be easily
installed, without sacrificing an appearance, in a joint
groove required to secure water-tightness between adjoining
wall surface facing members A of a building. Moreover,
since the joiner 4 itself is integrally provided with a
joint base member 6 filled with the sealant 8 for easily
sealing a joint groove, the need for masking or manual
charging of the sealant 8 can be obviated, permitting easy,
reliable sealing. Moreover, the area for accommodating an
extra sealant 8 to cope with variations in the widths of
joint grooves is secured, preventing the sealant 8 from
extending out of the joint member 2 when the core member 10
is pushed in. This arrangement enables effective use of the
sealant 8 for sealing the joint groove thereby to provide
effective sealing between the inner walls W of the joint
groove.
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Fig. 5 through Fig. 7 illustrate a second embodiment
of the present invention. A joint member 2 of the second
embodiment has a covering member 26 fitted in a mouth
portion 18 between two side plates 12 in a joint base member
6 filled with a sealant 8 as clearly shown in Fig. 6. Prior
to installation of the joint member 2, the covering member
26 is retained at the mouth portion 18 between the two side
plates 12 in the joint base member 6 by an engagement
between engaging portions 28 formed on both side surfaces
thereof and engaging portions 22 formed on a mouth edge of
the inner side surfaces of the two side plates 12 in the
joint base member 6. The covering member 26 inhibits the
sealant 8 from flowing out through the mouth portion 18
between the two side plates 12 in the joint base member 6,
and also inhibits the mouth portion between the two side
plates from being narrowed by the two side plates being
pushed inward with consequent outflow of the sealant or
interference with the core member being pushed in. It is
also possible to attach a mold release sheet 20B, which is
for inhibiting the sealant 8 from flowing out, onto the
covering member 26.
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When providing the covering member 26, a head portion
27B of a core member 27 identical to that in the first
embodiment is used, and a core portion 27A of the core
member 27 is formed to have a length so that the distal end
of the covering member 26 does not reach the bottom portion
of the sealant charge area between the side plates 12 when
the core portion 27A is pushed in. The distal end of the
core portion 27A is provided with a protuberance 27a that
engages a recess formed in the covering member 26 to
stabilize the connection therebetween.
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The rest of the configuration and operation of the
joint member of the second embodiment are substantially
identical to those of the first embodiment; therefore, like
reference numerals will be assigned to like or equivalent
components, and the descriptions thereof will be omitted.
The method for installing the joint member of the second
embodiment is the same as that of the first embodiment
except that the core portion 27A of the core member 27 is
pushed into a gap between the two side plates 12 of the
joint base member 6 filled with the sealant 8 while pushing
the covering member 26 fitted into the mouth portion between
the two side plates 12.
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Fig. 8 shows a third embodiment in accordance with
the present invention. A joint member 32 of the third
embodiment has a joint base member 36 made integral
therewith via legs 35 arranged in a standing manner on the
surface of a joiner 34 as shown in the drawing.
-
The joint base member 36 is used for a case wherein
the wall surface facing members A are thick; it is not
particular different in the configuration, the operations,
and the installation methods from the first embodiment
except for the legs 35 and sealing tongue flaps 44 provided
on the legs 35. Hence, like reference numerals will be
assigned to like or equivalent components, and the
descriptions thereof will be omitted.
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The sealing tongue flaps 44 are provided to form a
space S2 between the sealing tongue flaps 14b in the first
embodiment and the joiner 34 so as to prevent a sealant
flowing into the space S2 from being dissipated. In this
embodiment, a case is shown wherein the sealing tongue flaps
44 are provided with protuberances 44c for setting a minimum
width of a joint groove. In the third embodiment also, a
covering member 12 similar to that in the second embodiment
can be used as a sealing member for a mouth portion 18
between the two side plates 12 and 12.
-
Fig. 9 and Fig. 10 (a) and (b) show a fourth
embodiment of a joint member in accordance with the present
invention.
-
In Fig. 9, reference numeral 102 denotes a joint
member for sealing a joint groove at joined portion or the
like of wall surface facing members (sidings or other facing
panels) A of a building. The joint member 102 is used
primarily for a joint groove required to secure water-tightness
between adjoining wall surface facing members A in
the building. The joint member 102 is schematically formed
of a joiner 104, a sealing structural member 106 made
integral with the joiner 104, and a core member 110.
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As can be seen from Fig. 9, the joiner 104 is shaped
like a tie plate positioned and provided between adjoining
wall surface facing members A on a furring strip C. The
furring strip C, which constitutes a bed surface of facing,
is installed to a body of the building via a waterproof
sheet B employed as necessary. The joiner 104 is fixed to
the furring strip C by a nail D1 or the like.
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The sealing structural member 106 consecutively and
integrally installed to the surface of the joiner 104 has
its right and left side plates 112 and 112 made of a
thermoplastic relatively hard synthetic resin consecutively
and opposingly installed to the joiner 104 at their proximal
ends, the side plates 112 and 112 being curved at their
central portions in directions for narrowing a space
therebetween into which the core member 110 is pushed as
clearly shown in Fig. 10(b). Furthermore, three pairs of
sealing tongue flaps 114a, 114b, and 114c, which are made of
a thermoplastic soft synthetic resin, are protuberantly
provided at top, bottom, and middle of outer side surfaces
of the two side plates 112 such that they are formed
integrally with the side plates 112. These sealing tongue
flaps 114a, 114b, and 114c constitute a sealing assembly for
sealing (secondary sealing) of a joint groove.
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As shown in Fig. 9 and Fig. 10(a), the core member
110 is formed to have a substantially T-shaped section by
integrally and consecutively installing a core portion 110A
formed of a thermoplastic relatively hard synthetic resin
with a hollow center and a head portion 110B that covers the
mouth of the joint groove. A head portion 110B of the core
member 110 has its both wings 110b in frictional contact
with the inner walls W of the joint groove for sealing
(primary sealing), and it is formed of a jaw plate made of a
thermoplastic relatively soft synthetic resin that covers
the mouth portion of the joint groove. The jaw plate of the
head portion 110B is formed integrally with the top flat
surface of the core portion 110A except for the portions on
both ends thereof; therefore, when it is press-fitted in the
joint groove, the portion made integral with the core
portion 110A forms a flat surface, and only both end
portions are firmly pressed into contact with the inner
walls W of the joint groove, presenting a superb appearance.
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Furthermore, engaging hooks 116A are provided at
upper ends of the inner surfaces of the two side plates 112
in the sealing structural member 106 such that they oppose
each other. In addition, engaging grooves 116B are formed
in a depressed manner at proximal end portions of the core
portion 110A where the core portion 110A and the head
portion 110B are consecutively installed in the core member
110. Thus, as the core member 110 is pushed into the
sealing structural member 106, the engaging hooks 116A and
the engaging grooves 116B engage each other to form an
engaging portion 116 that holds the core member 110 between
the two side plates 112 in the sealing structural member 106
such that it does not slip off.
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Reference numeral 118 in the drawing denotes
projections that provide limitation in setting the width of
a joint groove. A minimum width of a joint groove is
restricted or a proper width thereof is set by abutting the
end surfaces of the wall surface facing members A against
the projections 118. The projections 118 may be omitted as
necessary; however, they may be provided in the following
embodiments.
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To install the joint member 102 of the fourth
embodiment in accordance with the present invention that has
the configuration set forth above, first, the sealing
structural member 106 is positioned between the wall surface
facing members A to provide the joiner 104, and the wall
surface facing members A are fixed in this state. Then, the
core portion 110A of the core member 110 is pushed into a
gap between the two side plates 112 and 112 of the sealing
structural member 106. This causes the jaw plate of the
head portion 110B of the core member 110 to provide the
mouth portion of the joint groove with the primary sealing.
At the same time, the two side plates 112 of the sealing
structural member 106 are pushed and spread by the core
member 110A to cause the sealing tongue flaps 114a, 114b,
and 114c on the outer side surfaces of the side plates 112
to be pressed into contact with the inner walls W of the
joint groove to perform the secondary sealing. Furthermore,
the engaging projections 116A formed on the two side plates
of the sealing structural member 106 and the engaging
grooves 116B formed in the core portion 110A of the core
member 110 engage with each other to hold the core member
110 between the two side plates 112 and 112 in the sealing
structural member 106 such that it does not slip off. This
arrangement makes it possible to securely maintain water-tightness
and also to successfully cope with variations in
the width of joint grooves.
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Furthermore, the two side plates 112 and 112 are
curved at their central portions in directions for narrowing
the space into which the core member is pushed, and the core
member 110 having both side surfaces of the core portion
110A substantially in parallel is pushed in the gap between
the side plates 112 and 112. Hence, the sealing tongue
flaps 114a, 114b, and 114c are not firmly pressed into
contact with the end surfaces of the facing members when
installing the joint member between the wall surface facing
members so as not to interfere with working. When press-fitting
the core member 110 into the gap between the side
plates 112 and 112, the contact pressure of the respective
sealing tongue flaps 114a, 114b, and 114c is successfully
applied to the inner walls W of the joint groove, thus
permitting good sealing effect to be achieved.
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The joint member described above can be easily
installed in a dry manner, without sacrificing an appearance,
in a joint groove required to secure water-tightness between
adjacent wall surface facing members A of a building.
Moreover, since the
joiner 104 itself is provided integrally
with the sealing
structural member 106 for easily sealing a
joint groove, reliable sealing can be accomplished easily at
low cost.
| Reference Numerals |
| 2 | Joint member | 32 | Joint member |
| 4 | Joiner | 34 | Joiner |
| 6 | Joint base member | 35 | Leg |
| 8 | Sealant | 36 | Joint base member |
| 10 | Core member | 44 | Sealing tongue flap |
| 10A | Core portion | 44c | Protuberance | |
| 10B | Head portion | | 50 | Joiner |
| 10a | Distal end | | 51 | Bed member |
| 10b | Both wings | 50a | Both projecting side surfaces |
| 12 | Side plates | 52 | Sealant |
| 14a | Sealing tongue flap | 102 | Joint member |
| 14b | Sealing tongue flap | 104 | Joiner |
| 14c | Protuberance |
| | 106 | Sealing structural member |
| 16 | Aperture | 110 | Core member |
| 18 | Mouth portion | 110A | Core portion | |
| 20A | Mold release sheet | 110B | Head portion | |
| 20B | Mold release sheet | 110b | Wing | |
| 22 | Engaging portion | 112 | Side plates |
| 24 | Engaging portion | 114a | Sealing tongue flap |
| 26 | Covering member | 114b | Sealing tongue flap |
| 27 | Core member | 114c | Sealing tongue flap |
| 27A | Core portion | | 116 | Engaging portion |
| 27B | Head portion | | 116A | Engaging hook |
| 27a | Protuberance |
| | 116B | Engaging groove |
| 28 | Engaging portion | 118 | Projection |
| A | Wall surface facing member |
| B | Waterproof sheet |
| C | Furring strip |
| D | Nail |
| D1 | Nail |
| S1 | Space |
| S2 | Space |
| S3 | Sealant charge area |
| W | Inner wall |
